Different Auxin (NAA) Concentration on Growth and Yield of Black Rice (Oryza sativa L.var. Cempo Ireng) in SRI (System Rice Of Intensification) Method

• Main Author: Azmi F ( Nim : 11414049), Ashila
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25851
• Institution: Institut Teknologi Bandung

Black rice is one of the local cultivars that contain high antioxidants, fiber, <br /> <br /> vitamin E and are good for the health of the human body. However, the <br /> <br /> productivity of black rice is still very low with a long harvest age (4-5 months) <br /> <br /> and a small amount of quality seeds. One way of developing black rice in order to <br /> <br /> increase its growth and productivity is through the provision of growth hormones <br /> <br /> such as auxin (NAA) with the SRI method in the cultivation process. The purpose <br /> <br /> of this study is to determine the effect of NAA concentration differences on the <br /> <br /> growth and yield of black rice var. Cempo Ireng and determine the concentration <br /> <br /> of NAA hormone to increase growth and yield of black rice var. Cempo Ireng <br /> <br /> using SRI method. The study was conducted using a Randomized Block Design <br /> <br /> (RCBD) consisting of 4 treatments and 7 repetitions. The treatments consisted of <br /> <br /> 4 concentration levels, namely concentrations of 0 ppm (A), 20 ppm (B), 40 ppm <br /> <br /> (C), and 60 ppm (D). The results of the study shows that it is not significantly <br /> <br /> affected by each treatment both on the parameters of growth and yield of plants. <br /> <br /> However, the treatment concentrations that capable of giving the best results are <br /> <br /> concentration of 20 ppm and 40 ppm. Growth parameters include: plant height, <br /> <br /> number of tillers, and panicle number at concentration of 20 ppm is given 75.81 <br /> <br /> cm, 43 tillers, and 24.71 panicles. Whereas for crop yield parameters (harvest <br /> <br /> index and productivity) the average values in sequantially are 46.67% and 5.055 <br /> <br /> tons / ha / year. The best crop yield parameters for 1000 grains and filled panicles <br /> <br /> per panicle were obtained at a concentration of 40 ppm respectively are 27.96 <br /> <br /> grams and 139.05 filled grains.